so my friend has a 15g saltwater tank. she is overstocked with black clowns, a bicolor dottyback, etc., but the one thing that caught my attention was that she said she has a puffer. i didn't know of any puffers that could live in a tank so small so i typed up "dwarf saltwater puffer" on google images and she pointed out that it looked like a pea puffer or a green spotted puffer. so i told her those are brackish water fish and she told me this : " the fish store where i bought him said that they slowly added more and more saltwater to his tank until he became a saltwater fish." i didn't know if that was possible so im asking you guys: Can a brackish water fish become a saltwater fish?

"Dps are 100% fresh water fish, they do not require any salt, unlike some other fresh water puffers they do not require salt as they grow older, although they will tolerate small increases in salinity they are at optimum health in pure fresh water."

Wow poor DP... This is why you should never listen to what the LFS says..

Yes there are many fish that live in brackish water, but are better kept in saltwater tanks. The reason being brackish fish is too costly. Think about the cost of salt for weekly water changes. If you can get the fish into saltwater, then you can add live rocks, skimmers, refugiums, and lots of other stuff to delay water changes.

Its alright. You can offer advice and opinions, but its up to them if they want to take it or not. We can't force it upon them. My family also have puffers and do a lot of things that would be wrong in this hobby, but whatever..

Its alright. You can offer advice and opinions, but its up to them if they want to take it or not. We can't force it upon them. My family also have puffers and do a lot of things that would be wrong in this hobby, but whatever..

Same thing applies to this forum.

clearly fishnapping is in order go to your friends with ziplocks in your pockets lol jk